Electric display-board.



N. L. WINE. ELECTRlC DISPLAY BOARD. APPLlCATlON men NOV 25.1914.

Patentd June 1 1915.

' with the chalk for depressing li" eissues,

om n M & insecure merrier-aortas. 1,141,?dih' summation Belts llatflni-- li atented June it, 1915 application filed November fed-i914. Serial No. traces.

doctor 10 leads from each of the electromagnetsthrough a plate 11 to a supporting plate 12 to the electric light bulbs 13. Conductors'a and b from a source of electricity Florida, have invented certain new, and use supply lead to the plate l2 and to the plate fol Improvements in Electric Display 5, th Boards; and I do herehy'declare the follow- A flexible blackboard or cover -i ing to be a full, clear, and exact description over the smooth surface or the headed of the of the invention, such as will enable others contact pins, and when it IS (lGSlI'QCltO disskilled in the art to which it appertains to play a *sign or legend upon. the device, a make and use the same. chalk crayon or stylus may be used to trace his invention relates to electric display the letter upon the flexible blackboard 14 ds or sigm, principal oband will thus push 1n the pins 3 to light the the invention is to provide an eleccorresponding bulb 13 upon the outer SIClB trio display board which the contact pins and display, the letters upon the blackboard, are provided with enlarged heads to be cov- From the ioregono. it will be understood cred by a flexible blackboard or sheet which that when the switch a is 111 closed position, maybe written on by a stylus or piece of t e sign may be Written upon the blackthe contact pins and board or fiexlb 14 and that the electric light bulbs 13 corresponding to the for making contact with the cores of electric magnets in circuit with electric light bulbs, pins will be lighted and that th1s s1gn will be permanent as long as the switch is closed.

so that any figure drawn upon the flexible blackboard will be represented by theelec- Various changes may be made in the detrio light bulb on the display board; I tails of construction and the relative sizes The foregoing and other objects may be. c the parts, without departing from the attained by means of the construction illusspirit and scope of t e invention as defined trated. in the accompanying drawing, in in the claims. which, v What is claimed is Figure 1 is a vertical sectional view taken 1. n electric display board comprising a through a portion of an electric display series of contact pins mounted in board made in accordance with this invensupport and provided with flat Fig. 2 is a fragmentary rear elevation heads which form a flat almost unbroken of the board'with the flexible cover or blacksurface, a flexible blackboard or screen, and board broken away to show the heads of the a series of electro -magnets, electric light p pins. Fig. 3 is a detail rear eleva tiongwith the flexible blackboard or writing surface removed. v

Referring to the drawings, designates a board having a series of apcrtures 2therein, and mounted in said apertures are contact pins 3, said pins each hav ing an enlarged flat head 4 which are arranged closely together to form a substantially flat surface. The pins 3 project through a plate 5 and are provided with nuts or washers 6 to limit the movement of the pins backwardly. A spiral spring 7 surrounds each of the pins and the tension ofsaid springs is to hold the pins with the 3. An e leads out of contact with the board lin the spring actuated contact pins mounted in position shown in Fig. l of the drawing. apertures in a suitable support, said pins in alinement 1 heads adapted to liein an pins3an'd their cores 9 are spaced almost continuous flush surface, a flexible ends of the contact pins 3. A conblackboard or sheet suspended in contact To all whom it may concern: Be it known that I,NOAH L, WINE, a c1t1- zen of the United States, residing at Fort Myers, in the county of Lee andfitate of or legend is traced upon the blackboard, the contact pins are pushed in against the cores of said magnets to display the same by the electric light bulb.

2. An electric display boardcomprising a series of spring actuated contact pins having smooth heads thereon, a flexible blackin contact with the numeral 1 mg cores 1n alinement with sa1d=contact from the whereby when a sign,

pins, electric lights and connections whereby with heads, electro-magnets having their "tact of the pinswith the electnic-Inag net cores mounted in alinement with said pins, cores. electric light "bulbs connected to said meg- In testimon whereof I-afiix my signature nets, connections between the electric lights in presence 0 two wltnew.

5 and the contact pins, a switch in said. 0011- NOAH L. WINE.

nections, and means whereby when a. sign 1S Witnesses: giaced upon the blackboard or a sheet it will W. R. WALLACE, reproduced in the electric lights by coni L. C. \GU'RTBIGET. 

